EB US 20 over US 52 SB
GoodDubuque County, Iowa · At Jct. Ia 136 · Structure no. 000000000605735
- Built
- 1987
- 38 years old
- Condition
- Good
- inspected June 2023
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 196 ft
- 3 main spans
- Daily traffic
- 3,600
- 2022 count
- Owner
- State
- State Highway Agency
About this bridge
EB US 20 over US 52 SB is a prestressed concrete stringer/multi-beam or girder carrying EB US 20 over US 52 SB in Dubuque County, Iowa. It was built in 1987, so it is 38 years old, younger than the Iowa average of 45.5 years.
The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
It carries about 3,600 vehicles a day, roughly 24% of them trucks, projected to reach 3,600 by 2042. The structure is 196 ft (59.7 m) long and 51 ft wide. If it were closed, the detour would be 1.2 mi (2 km).
Location
Open in Google MapsCondition and inspection
All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 7 Good | Some minor problems. |
| Superstructure | 8 Very Good | No problems noted. |
| Substructure | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was EB US 20 over US 52 SB built?
It was built in 1987, making it 38 years old in 2025.
What condition is EB US 20 over US 52 SB in?
The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in June 2023.
How much traffic does EB US 20 over US 52 SB carry?
About 3,600 vehicles per day (2022 count), of which roughly 24% are trucks.
How long is EB US 20 over US 52 SB?
The structure is 196 ft (59.7 m) long with a longest span of 92 ft (28 m) and a deck 51 ft wide.
Who owns EB US 20 over US 52 SB?
It is owned by the State Highway Agency.